Programming instructions

5-30
Tool Corrections NC Programming 17VRS
DOK-MTC200-NC**PRO*V17-ANW1-EN-P
The establishment of tool path compensation requires an additional move
in the working plane which is performed only in conjunction with a pro-
grammed linear movement.
R
[P0]
[P1]
[Ps]
Programmed
Linear Movement
Traversed
Linear Movement
R tool radius
[Ps] starting point of tool path compensation
[P0] programmed starting point of the contour
[P1] corrected starting point of the contour
Fig. 5-20: Establishing tool path compensation
If an attempt is made to perform the tool path compensation by means of
a circular movement, an error will be issued.
“*G41/G42 activated with circular interpolation”
and the NC-program will terminate.
To avoid violations of the contour starting point, the starting point of tool
path compensation must be selected in such a way that the tool is located
completely within the quadrant which is opposite the contour corner.
[P0]
[P1]
R
[Ps]
R tool radius
[Ps] starting point of tool path compensation
[P0] programmed starting point of the contour
[P1] corrected starting point of the contour
Fig. 5-21: Contour starting point of tool path compensation
If the starting point of the tool path compensation is moved to an inside
corner with closed contours, a contour violation would result at the end of
the contour (see Fig. 5-22).